Vehicle-wheel.



J. W. McCALLUM. VEHICLE WHEEL. APPLIOATION FILED APR. 24', 1909.

Patented July 23, 1912.

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:fivnes flWFCaZZum ATTORNEYS J. W. MGO'ALLUM.

VEHICLE WHEEL. APPLICATION FILED APR. 24, 1909.

Patented July 23, 1912.

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' CALLUM, a citizen of the resident of Plymouth, county of Marshall, 'ljtate of Indiana, have invented a certain JAMES lVARnER Mo United States, and

Be it known that I,

new and useful Vehicle-Wheel, of which the following is a full description. i

Among the principal objects which this invention has inview -are:-to construct a vehicle wheel from segments adapted to be assembled and bound together to form a continuous wheel 1 to form the said segment-s so that the members thereof are integrally related; to obtain the maximum rigidity with the minimum weight; and to simplify the construction.

One-embodiment of the present invention is shown in the accompanying drawings, wherein like characters of reference designate corresponding parts in all the views.

Figure 1 is a side elevation of a wheel constructed in accordance with this invention. In this view a portion of the hub and a portion of the telly are cut away to show the interior construction. Fig. Qis a cross section of the same through one of the diameters taken on the line 22 in Fig. 1. .Fig'. 3 is a cross section through the telly, taken on the line 3--3 in Fig. 1. Fig. 4 is a cross section of the spokes. taken on the line 4% in Fig. 1. Fig. dis a side view of one of the segments of which this wheel is composed. Fig. 6 is a top view of a'moditied form of the construction embodying this invention.

In the above mentioned drawings, the numeral -2-- indicates a segment of the telly.

The numeral.3 indicates the spokes.

T he numeral -4. indicates the hub segments.

The numeral -5 indicates the extension by which the telly segments are joined.

In the construction shown in the drawings, the segments are constructed from the sixth part of the wheel. Each segment is shown as carryingtwo-spokes. It will be. understood that. the proportionate size of these segments may be increased or de- Specification of Letters Patent.

Patented July 23, 1912.

Application fild'April 24, 1909. Serial No. 491,894.

creased without passing beyond the scope of this invention. It is desirable-(though not -essential)-that. the segments should be in equal divisions. of the entire wheel. By having the segments reduced to the dimension shown, a desirable purpose is here effected, towit:that when a portion of the wheel is damaged one of the segments receiving the damage may be removed and replaced. If this replaced segment be small, thenecessary laborconnected with the removal and replacement is diminished.

The segments from which this wheel is formed are preferably constructed of cast iron, which may be annealed or not, as desired. To obtain the maximum strength,

with lightness of construction, the structural form adopted tor-both the spokes and telly is that of a hollow-half cylinder. In Fig. 3 of the drawings there is shown a cross sectionofthe'felly; and in Fig. 4 is shown a cross section of one of the spokes, The preferred form =of the folly is that provided. with the face or bridge -G to receive the tire -'7-. The telly is reinforced by the cross.- ribs 8-8-. at suitable intervals. The segments of the telly are provided at the one end with an extension -5-. This extension is open outwardly and has an em; terior shape to fit within the channel formed by the interior of the telly 2. At the point of extension a shoulder- 9- is formed,-and if need be, this shoulder may be suitably machined ,to form a close joint with the squared faces -10 of the end of the segmentnot hearing the extension 5.

In F ig. 6 of the drawings, there is shown construction is illustrated. The said alternative construction here shown consists in omitting the race or bridge '-6-' and substituting therefor at .suitable and de-.

sired intervals the bracketed extensions -11-'1l-, which are provided to receive the tire --7 in lieu of the said bridge -6. A certain proportion of lightness in construction is thus gained.v

The spokes -8- are preferably formed to the construction shown in Fig. .4. It

will be understood,however, that shoulda tubular or bridged construction be preferred, closing or bridging the opening be tween the straight legs of the U this may be accomplished without altering the spirit of this invention. In arrangement, the spokes -'3 are oined to the-felly --2 on the central line thereof, and in such position that the hollow of each spoke faces that of the other spoke. At the lower end the spokes are joined to the hub, but at either side of the longitudinal center of the hub.

The linesof extension of the spokes 3 -3 are tangential to the hub, as shown in the drawings.-

The hub segments 4-- are of the same relative proportion to the completed hub that the felly segments are to the completed the extensions 5 within the channel of' the adjacent felly segment. It will be noted that the segments are so constructed that they can be brought together on radial lines,

the parts fittin without obstruction.

hen assembled, theparts are held together by the tire .7- and the hub bands 14 and 15. The bands 14 and 15- are given a drive fit, drawing the hub sections --'lclosely together. The same is true of the tire --7. The bearing -13 is then introduced by being screwed into the opening formed by the hub sections -4--, screw threads having been provided on the outer surface of the said bearing and on the inner surface of the hub section. This screw thread engagement secures perfect 7 alinement,of the hub segments and prevents disadjustment of the same laterally.

The bearing -13 is provided with an annular extention l6-, the lameter of which equals the outer diameter of the collar 15-, and is adapted to strike upon and hold the said collar in position when the hub bearing has been forced forward against the said collar and hub sections. The inner surface of the bearing -l3- is extended to form sand grooves -17. The collar -14 maybe held in position by any suitableconstruction, or the wheel nut may be provided with a flange to bear against the outer edge of the said collar as it does against the bearing 13-. The lubricating devices employed in the bearing 13 are of the usual form and style. That shown 111 the present construction employs a central chamber -1S, from which may extend inclined distribution grooves leading to end dust guard grooves 1919 This chamber --18 may be provided with any suitable oiling inlet.

The tire. 7 is acontinuous band; It may be heated and shrunk upon the felly as is at present done in wheels having wood,

fellies. If this method ,is followed, precau- -wheel. Furthermore, the object in'arranging the spokes tangentiallyis to give the wheel a brace within itself longitudinally that a direct spoked wheel does notha've andwhich effectually prevents the twisting of the hub within the wheel. Also by reason of the crossing of the spokes of each section and their being together for several nches from the hub, renders the spokes as stifi' (by bracing each other) at that point as though they left the hub there, i. 0., sev- 5 eral inches from the hub, which in effect makes the hub extend fromQthe crossing of thespokes on one side of the hub to the crossing of the spokes on the'bpposite side of the hub, greatly increasing the size of the hub and correspondingly decreasing the length of the spokes and thereby increasing the strength of the wheel.

Having thus described this invention, 7

what is claimed is I A metallic wheel comprising a plurality of wheel segments, each of said segments embodying a sect-ion of a hollow felly, and a section of a hub, said sections forming arcs of the same sector of the completed wheel,

I the are formed by the felly section being equal in length to two spaces between the spokes of said wheel where the same are joined to said felly, said hub sections being provided with parallel pitched grooves forming sections 'of an internal screw threaded cylinder when all of said hub sections are. united, said felly and. hub sections being united by two spokes integrally formed with said sections, said spokes being channeled and opening transversely of the said segments, and said spokes being disposed -in mutually crossed relation and tanspokes being connected with the said felly section. at the first and third quarter sec tions of the length of the said felly section; a plurality of binding rings encompassing gential to the completed wheel hub, said said hub sect-ions to hold the same in eylinmy hand in the presence of witnesses this drical disposition; a screw threaded hub 17th day of April 1909. bearing adapted to engage the said hub sections in threaded relation; and means for 7 JAMES W'ARBER MCGALLUM' 5 holding the said rings in position on the VVit-nesses:

completed hub. MANUEL O. RQARK,

In testimony whereof, I have hereunto set GEORGE F. Hire/1100011.

' Copies of this patent'may be obtained for five cents each, by addressing the Commissioner of Patents, WashingtomD. 0. v 

